Evolution: Its Nature, Its Evidences, and Its Relation to Religious Thought

according adaptive modification Agassiz already amphibians anoura aortic arches appendages arthropods beautiful become birds brain breeding called cause cells cerebellum cerebrum chapter commencing complete continued cross-breeding cross-sterility crustaceans Darwin digitigrade distinct divergent variation divine earliest earth embryonic development environment Eocene epoch evidence example existence explain fact faunas and floras fishes forces fore function genera gradual groups higher animals homology horse human evolution idea illustrate individual infinite inherited intermediate links isolation kind Lamarckian Lamarckian factors law of evolution lower mammals ment mind Miocene mode natural process natural selection necessary offspring olfactive ontogenic ontogenic series optic lobes organic evolution organic forms organic kingdom origin of species perissodactyl phenomena phylogenic physical progress psychical race relation reproduction reptiles scientific separated sexual spirit stages structure successive supernatural supposed taxonomic series thalamus theory of evolution tion toes traced true truth varieties vertebrate whole wholly